Rolls for iron-rolling mills



(No Model.)

A. W. H. COLLARE.

ROLLS FOR IRON ROLLING MILLS.

,808. Patented June l2. 1888.

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UNITED STATES PATENT einena ARTHUR WILLIAM HENRY COLLARD, OF PITTSBURG, PENNSYLVANIA.

ROLLS FOR IRON=ROLLING MILLS,

SPECIFICATION forming part of Letters Patent No. 384,308, dated June 12x 19:88x

Application tiled April T. 1888.

To @ZZ whom it may concern:

Be it known that I, ARTHUR WILLIAM HENRY CoLLAnD, a subject of the Queen of Great Britain, residing at Pittsburg, in the count-y of Aliegheny and State of Pennsylvania, have invented certain nen7 and useful Improvements in Rolls for lronltolling Mills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to rolls for iron-rolling mills; and it consists of au improved construction of chillediron roll, as hereinafter described and claimed.

In the accompanying drawings, Figure l represents a roll having my improvement. Fig. 2 is a side View of a center piece or core which forms the interior portion of the roll. Fig. 3 is a vertical central section showing the center piece secured in position within the mold for casting` the roll. Fig. 4 is a central longitudinal section of roll.

A designates a center piece or core, constructed of brick, clay, or other suitable earthen material, and reduced at its extremities to form the necks a and c', thejonrnals or bearings of the roll being formed about the said necks. The center piece, A,is madein sections to conform to the size and shape of roll, prei erably ol" relbrick, and is formed with a central aperture or longitudinal opening, b, eX- tending from end to end, in which is placed a bar, c, for securing` the center piece in position in the center ot the mold in which the roll is to be cast.

Serial No. 260,961. (Nomodel.)

The mold which surrounds the core is nsually provided With an iron lining, (indicated by (1,) Within which the body or main part of the roll is formed, dry sand,-e, being placed about the lining. Sand mold fisforlncd to su rronnd the necks a a", Where the bearing parts of the roll are formed. The metal beingpourcdinto the mold, the iron portion ofthe roll is formed on the center piece, entirely inelosing` it to a suitable thickness, the body of the centerpiece being wit-hin the body B of the roll, and the necks a and a. being within the bearings C and C', the Whole forming` a durable chilled roll, u

which is light, but of ample strength. The roll th ns constructed tends to equalize the contrae-tion of the iron in the roll in its transition from a molten to a solid condition.

l. Inaroll for metal-rolling, au interior centrai portion formed of brick or earthen material, and the outer portion el' metal, which incloses the central portion, substantially as and for the purposes described.

2. The roll formed Otan outer portion of metal and a center piece of brick material, having necks c and a' formed at its extremities, substantially as and for the purpose setforth.

In testimony whereof I have affixed mysignaturein presence of two Witnesses.

ARTHUR WILLIAM HENRI Cdhlnilll).

Vitnesses:

JOHN H. Tronms, REUBEN JENKINs, 

